/Engine/Source/Runtime/SlateCore/Public/Textures/TextureAtlas.h
Adds a texture to the atlas
const [FAtlasedTextureSlot](API\Runtime\SlateCore\Textures\FAtlasedTextureSlot) * AddTexture ( uint32 TextureWidth, uint32 TextureHeight, const [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & Data )